EP2256388A3 - Drive device with a piezo stack actuator - Google Patents

Drive device with a piezo stack actuator Download PDF

Info

Publication number
EP2256388A3
EP2256388A3 EP10005256.2A EP10005256A EP2256388A3 EP 2256388 A3 EP2256388 A3 EP 2256388A3 EP 10005256 A EP10005256 A EP 10005256A EP 2256388 A3 EP2256388 A3 EP 2256388A3
Authority
EP
European Patent Office
Prior art keywords
actuator
piezo stack
spring element
stack actuator
drive device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10005256.2A
Other languages
German (de)
French (fr)
Other versions
EP2256388B1 (en
EP2256388A2 (en
Inventor
Maik Fuchs
Ralf Tautenhahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buerkert Werke GmbH and Co KG
Original Assignee
Buerkert Werke GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Buerkert Werke GmbH and Co KG filed Critical Buerkert Werke GmbH and Co KG
Publication of EP2256388A2 publication Critical patent/EP2256388A2/en
Publication of EP2256388A3 publication Critical patent/EP2256388A3/en
Application granted granted Critical
Publication of EP2256388B1 publication Critical patent/EP2256388B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0045—Three-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/004—Actuating devices; Operating means; Releasing devices actuated by piezoelectric means
    • F16K31/007—Piezoelectric stacks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/02—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing linear motion, e.g. actuators; Linear positioners ; Linear motors
    • H02N2/04—Constructional details
    • H02N2/043—Mechanical transmission means, e.g. for stroke amplification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/701—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Vorgestellt wird eine Antriebseinrichtung mit einem Piezostapelaktor (12) und einer Hub-Übersetzung, die den Dehnungshub des Piezostapelaktors in einen vergrößerten Stellhub eines Betätigers umsetzt. Der Betätiger wird durch ein Federelement (23) in eine Betätigungsstellung beaufschlagt und ist kraftschlüssig mit einem Übertragungselement gekoppelt, das seinerseits durch ein weiteres Federelement in eine Ruhestellung beaufschlagt und zugleich kraftschlüssig mit dem Abtriebsende des Piezostapelaktors gekoppelt ist. Das Übertragungselement zwingt in der Ruhestellung den Betätiger entgegen dem ihn beaufschlagenden Federelement in eine Ruhestellung und gibt ihn in einer durch den Piezostapelaktor bewirkten Betätigungsstellung frei, so dass der Betätiger unter der Wirkung des ihn beaufschlagenden Federelements die Betätigungsstellung einnimmt.

Figure imgaf001
Disclosed is a drive device with a piezo stack actuator (12) and a stroke translation, which converts the expansion stroke of the piezo stack actuator in an enlarged actuating stroke of an actuator. The actuator is acted upon by a spring element (23) in an actuating position and is non-positively coupled to a transmission element, which in turn is acted upon by a further spring element in a rest position and at the same time coupled non-positively with the output end of the piezo stack actuator. The transmission element forces in the rest position the actuator against the spring element acting on it in a rest position and releases it in an actuated by the piezo stack actuator operating position, so that the actuator occupies the actuating position under the action of the spring element acting on it.
Figure imgaf001
EP20100005256 2009-05-20 2010-05-19 Drive device with a piezo stack actuator Not-in-force EP2256388B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200920007298 DE202009007298U1 (en) 2009-05-20 2009-05-20 Drive device with a piezo stack actuator

Publications (3)

Publication Number Publication Date
EP2256388A2 EP2256388A2 (en) 2010-12-01
EP2256388A3 true EP2256388A3 (en) 2013-11-13
EP2256388B1 EP2256388B1 (en) 2015-01-07

Family

ID=41079002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100005256 Not-in-force EP2256388B1 (en) 2009-05-20 2010-05-19 Drive device with a piezo stack actuator

Country Status (2)

Country Link
EP (1) EP2256388B1 (en)
DE (1) DE202009007298U1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010035263B4 (en) 2010-08-24 2013-11-28 Festo Ag & Co. Kg piezo valve
DE102010051742A1 (en) 2010-11-19 2012-05-24 Christoph Miethke Valve i.e. 2/2-way valve, for fluid line to control pharmaceutical product during dosing in pharmaceutical industry, has double-armed lever articulately held with membrane in housing, where membrane is formed as single piece with lever
DE102010051743B4 (en) 2010-11-19 2022-09-01 C. Miethke Gmbh & Co. Kg Programmable hydrocephalus valve
US11141755B2 (en) 2015-05-22 2021-10-12 Nordson Corporation Piezoelectric jetting system and method with amplification mechanism
DE102015215297A1 (en) * 2015-08-11 2017-02-16 Volkswagen Aktiengesellschaft Haptikgenerator
DE102022212011A1 (en) 2022-11-11 2024-05-16 Memetis Gmbh Valve

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810398A2 (en) * 1996-05-30 1997-12-03 Nass Magnet GmbH Electric actuated gate valve
WO2001014731A1 (en) * 1999-08-20 2001-03-01 Robert Bosch Gmbh Valve for controlling the flow of liquids
WO2001024288A2 (en) * 1999-09-30 2001-04-05 Robert Bosch Gmbh Adjusting unit for controlling a regulating and/or shut-off device
DE19952057A1 (en) * 1999-10-28 2001-05-03 Bosch Gmbh Robert Fuel injector
WO2002020975A1 (en) * 2000-09-08 2002-03-14 Robert Bosch Gmbh Valve for controlling liquids
DE10104617A1 (en) * 2001-02-02 2002-08-08 Bosch Gmbh Robert Valve for controlling fluids e.g. for fuel injection valves of common-rail or pump-jet injection systems, includes translator for translating stroke movement of piezo-actuator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0810398A2 (en) * 1996-05-30 1997-12-03 Nass Magnet GmbH Electric actuated gate valve
WO2001014731A1 (en) * 1999-08-20 2001-03-01 Robert Bosch Gmbh Valve for controlling the flow of liquids
WO2001024288A2 (en) * 1999-09-30 2001-04-05 Robert Bosch Gmbh Adjusting unit for controlling a regulating and/or shut-off device
DE19952057A1 (en) * 1999-10-28 2001-05-03 Bosch Gmbh Robert Fuel injector
WO2002020975A1 (en) * 2000-09-08 2002-03-14 Robert Bosch Gmbh Valve for controlling liquids
DE10104617A1 (en) * 2001-02-02 2002-08-08 Bosch Gmbh Robert Valve for controlling fluids e.g. for fuel injection valves of common-rail or pump-jet injection systems, includes translator for translating stroke movement of piezo-actuator

Also Published As

Publication number Publication date
DE202009007298U1 (en) 2009-09-17
EP2256388B1 (en) 2015-01-07
EP2256388A2 (en) 2010-12-01

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